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Title: Preparation of propanediols using a copper-and zinc containing hydrogenation catalyst

Abstract: Hydrogenation catalysts which are prepared from mixed crystals of copper-zinc compounds, obtained by precipitation, of the formula Cu1.5-3 Zn1-2.5 (CO3)1-2 (OH)4-6.(H2 O)0-1

by decomposition at 200°-500° C., and are used for the catalytic preparation of propanediols of the formula ##STR1## where the R's may be identical or different and each is an aliphatic, araliphatic or aromatic radical, or the two R's together with the adjacent carbon atom are members of an alicyclic ring, by hydrogenating hydroxypropionaldehydes of the formula ##STR2## where R has the above meanings, and to processes for the preparation of propanediols, using such catalysts. The propane-1,3-diols obtainable by the novel process are valuable starting materials for the preparation of lubricants, plastics, surface coatings and synthetic resins, for example of polyesters derived from the propanediols.




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Inventors: Broecker, Franz J. (Ludwigshafen, DE)
Hupfer, Leopold (Friedelsheim, DE)
Merger, Franz (Frankenthal, DE)
Miesen, Ernest (Ludwigshafen, DE)
Paetsch, Juergen (Wachenheim, DE)
Zirker, Guenter (Ludwigshafen, DE)

Application Number: 06/347380
Filing Date: 1982-02-10
Publication_date: 1983-07-12
Assignee: BASF AG (DE)

Primary Class(es): 568/811 568/838, 568/650, 568/644, 568/831, 568/862
Other Classes: B01J23/80; C07C29/141; C07C29/149; C07C31/20; C07C31/27; C07C33/26; B01J23/76; C07C29/00; C07C31/00; C07C33/00;
US Patent Ref:
2549416April, 1951Brooks568/881Preparation of alcohols
3808280April, 1974Merger et al.568/862
4052467October, 1977Mills et al.568/882Catalytic reduction of aldehydes to alcohols
4298766November, 1981Broecker et al.568/862Preparation of 2-methyl-pentane-2,4-diol

Other Refs: EP0008767GB988316
March, 1980568/881A HETEROGENEOUS VAPOR PHASE PROCESS FOR THE CATALYTIC HYDROGENATION OF ALDEHYDES TO ALCOHOLS
April, 1965568/831

Primary Examiner: Evans, Joseph E.
Assistant Examiner:
Attorney: Shurtleff, John H.
Parent Case Data:

This is a division of application Ser. No. 274,486, filed June 17, 1981.